Such a fistula may be the anastomosis of a natural artery and vein, a bovine graft, or a synthetic polytetrafluoroethylene (PTFE) graft. The bovine graft is taken from the bovine carotid artery and anastomosed to the vein and artery of the patient.
Definition of verify. verified. ; verifying. transitive verb. 1 : to confirm or substantiate in law by oath. 2 : to establish the truth, accuracy, or reality of verify the claim.
check verb (STOP). âº [T] to âstop someone from doing or saying something, or to âprevent something from âincreasing or âcontinuing: They have âbegun to âvaccinate âchildren in an âattempt to check the âspread of the âdisease.